The present disclosure describes quantification of the flow conductance in a region of the vasculature using a catheter member coupled to at least two pressure sensors. Data from measurements of the pressure at known, controlled patterns of flow rates at the catheter member can be used to compute values of the flow conductance for the regions of the vasculature.本發明描述在脈管之一區中使用耦合至至少兩個壓力感測器之一導管構件定量流傳導。在該導管構件處依已知的流率控制模式量測壓力所得之資料可用來計算該脈管之該等區之流傳導之值。200‧‧‧體外環路206‧‧‧泵系統208‧‧‧熱交換器210‧‧‧注入器構件212‧‧‧脈管注入點214‧‧‧血液
